Tamaki Kannazuki, also known as Tama, is a first-year student forcibly recruited into the club through abduction, mirroring another member's entry, and serves as its newest addition. Her family runs a shrine where she holds the position of priestess.

Physically, she possesses green hair styled in twin tails secured by ribbons with bells; these bells function as a locator device to prevent her from getting lost. Her eyes are also green. She stands taller than Mao Amatsuka but shorter than other club members and maintains a weight of 42 kg. An ahoge is visible atop her head. She is typically seen in her school uniform, consisting of a vest and bow.

Her speech consistently features habitual verbal tics, frequently ending sentences with "desu," "desu yo," or "desu ka."

She exhibits a strong affinity for photography, constantly carrying a camera that she skillfully conceals and retrieves as if using hammerspace. She enjoys taking candid photographs of fellow club members, often without explicit permission.

Food preferences significantly define her, particularly her enthusiastic consumption of snacks, potato chips, and especially cake. Her recruitment involved a promise of unlimited cake access. She possesses a metabolic trait preventing weight gain regardless of caloric intake, a point of recurring tension with Megumi Amatsuka who envies this ability. This dynamic leads to eating challenges where Megumi attempts to make her gain weight, all proving unsuccessful.

Her personality blends friendly helpfulness with distinct eigensinnigkeit. She displays a laidback attitude within the club, often reading manga, resting, or napping. A rivalry exists between her and Mao Amatsuka, primarily fueled by Tamaki's perceived freche Art.

Interpersonally, Shion Sumeragi dotes on her, fulfilling Shion's desire to act as an older sister figure. Her interactions frequently involve provoking reactions from Megumi through comments about food consumption and weight.